In the present invention, there is disclosed an escalator for negotiating curves, comprising a plurality of steps disposed sequentially in a curved path, each step having a tread (1) with a leading and a trailing edge in the direction of movement of the escalator, and means for driving the steps along the path, wherein the treads (1) are shaped such that the trailing edge of the tread (1) of one step is curved to match a corresponding curve of the leading edge of the tread (1) of the subsequent step so that the said steps fit together as they move around the curve of the escalator path. Each step comprises a substantially vertical shaft and a bush for receiving the journal of the shaft on an adjacent step, the shaft and bush arrangement permitting relative vertical displacement of adjacent steps as the steps ascend or descend an incline. Each step has a first and a second wheel (7, 8), and a first and second track (10, 11) are provided for supporting said first and second wheels (7, 8), wherein the relative vertical displacement of said first and second tracks (10, 11) defines the desired incline of the escalator path whilst keeping the treads (1) of the steps horizontal. Said first and second wheels (7, 8) are disposed substantially on a horizontal plane, and wherein the one of the tracks (10, 11) is higher than the other track (10, 11) for a descending escalator path.
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